Caterpillar Intermediate Piston Ring, PAI 305007 (OEM 1765749), Pack of 3
Used In These Kits
This part is included in 4 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Pistons, Rings & Rods |
| Sub-Type | Piston Ring Set |
| Engine Make | Caterpillar |
| Engine Model | 3406E · C15 · C16 · C18 |
Pack of 3.
PAI 305007 is an intermediate piston ring. PAI specifies Ductile Cast Iron construction. The manufacturer lists a 137.160 mm bore. This listing identifies the named component.
Compatible Engines
PAI lists Caterpillar 3406E Series; Caterpillar C15 Engine; Caterpillar C16 Engines; Caterpillar C18 Engine applications. Match the required part number and listed application.
Manufacturer references: Caterpillar 139-9126; Caterpillar 1399126; Caterpillar 176-5749; Caterpillar 1765749; Caterpillar 238-4737; Caterpillar 2384737.
Compare the full part number and required specification before ordering.
Fits:
- CATERPILLAR 3406E SERIES
- CATERPILLAR C15 ENGINE
- CATERPILLAR C16 ENGINES
- CATERPILLAR C18 ENGINE
OEM cross-references:
- CATERPILLAR 139-9126
- CATERPILLAR 1399126
- CATERPILLAR 176-5749
- CATERPILLAR 1765749
- CATERPILLAR 238-4737
- CATERPILLAR 2384737
Warranty: 24 months
These catalog references may identify this part or components in an assembly. A listed number alone does not confirm whole-assembly interchange or vehicle fitment. Confirm the required part before ordering.
| Number |
|---|
| CATERPILLAR 139-9126 |
| CATERPILLAR 1399126 |
| CATERPILLAR 176-5749 |
| CATERPILLAR 1765749 |
| CATERPILLAR 238-4737 |
| CATERPILLAR 2384737 |
| PAI 305007 |
No cross-reference numbers match that search.
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.







